Rotary engine model



FIG. 1 is a perspective view of a rotary engine model according to mydesign.

FIG. 2 is a front elevational view and the opposite side issubstantially a mirror image thereof with the crank handle omitted.

FIG. 3 is an elevational view of one side.

FIG. 4 is an elevational view of the other side.

The ornamental design for a rotary engine model, substantially as shownand described.